| De lasten van de rechtspersoon in het kader van de pensioenregeling ten behoeve van haar werknemers. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Pensionsaufwendungen | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Pension costs | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Prestations de retraite | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Pensioenlasten | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Summe der Pensionsaufwendungen | de | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Total of pension costs | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Total des prestations de retraite | fr | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Totaal van pensioenlasten | nl | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| An den Pensionsfonds zu zahlende Prämie | de | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Pension contribution to be paid | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Cotisation à verser à la caisse de retraite | fr | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Aan de pensioenuitvoerder te betalen premie | nl | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |